S. Crossley - Academia.edu (original) (raw)
Papers by S. Crossley
In the last 10 years the TINA vision system has been under continual development and expansion wi... more In the last 10 years the TINA vision system has been under continual development and expansion with the stereo sub-system evolving considerably. In this paper we document this evolution outlining the stereo requirements of the 3D wireframe model matcher in TINA and explaining why PMF was de- signed as a solution. We describe how the algorithmic constraints within PMF (a classical feature-based solution to the stereo correspondence problem) were then re-formulated as the Stretch Correlator (SC), a feature driven, area-based solution. We explain how the computational benefits of the SC implemen- tation were exploited in the development of the Video Convolution Processor (VCP), a prototype VLSI device designed and fabricated to accelerate the fundamental SC processes. The SC algorithm was extended to integrate data from temporal sequences of stereo images in order to improve robustness and cope with dynamic environments. Finally, we discuss how and why multi-scale techniques were incor...
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... A multi-stage approach to the dense estimation of disparity from stereo SEM images. ... varia... more ... A multi-stage approach to the dense estimation of disparity from stereo SEM images. ... variation between the left and right images have been addressed using a modification to rankorder filtering which we call 'soft' ranking. ... References. vision COMPUTING ELSEVIER Image and ...
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ChemSusChem, 2014
Fast pyrolysis of biomass to produce a bio-oil followed by catalytic upgrading is a widely studie... more Fast pyrolysis of biomass to produce a bio-oil followed by catalytic upgrading is a widely studied approach for the potential production of fuels from biomass. Because of the complexity of the bio-oil, most upgrading strategies focus on removing oxygen from the entire mixture to produce fuels. Here we report a novel method for the production of the specialty chemical, gluconic acid, from the pyrolysis of biomass. Through a combination of sequential condensation of pyrolysis vapors and water extraction, a solution rich in levoglucosan is obtained that accounts for over 30% of the carbon in the bio-oil produced from red oak. A simple filtration step yields a stream of high-purity levoglucosan. This stream of levoglucosan is then hydrolyzed and partially oxidized to yield gluconic acid with high purity and selectivity. This combination of cost-effective pyrolysis coupled with simple separation and upgrading could enable a variety of new product markets for chemicals from biomass.
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Science, 2010
A recoverable catalyst that simultaneously stabilizes emulsions would be highly advantageous in s... more A recoverable catalyst that simultaneously stabilizes emulsions would be highly advantageous in streamlining processes such as biomass refining, in which the immiscibility and thermal instability of crude products greatly complicates purification procedures. Here, we report a family of solid catalysts that can stabilize water-oil emulsions and catalyze reactions at the liquid/liquid interface. By depositing palladium onto carbon nanotube-inorganic oxide hybrid nanoparticles, we demonstrate biphasic hydrodeoxygenation and condensation catalysis in three substrate classes of interest in biomass refining. Microscopic characterization of the emulsions supports localization of the hybrid particles at the interface.
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Physica Scripta, 1990
We describe the development of the scanning photoemission spectromicroscope MAXIMUM at the Wisonc... more We describe the development of the scanning photoemission spectromicroscope MAXIMUM at the Wisoncsin Synchrotron Radiation Center, which uses radiation from a 30-period undulator. The article includes a discussion of the first tests after the initial commissioning.
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Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 1990
We discuss the implementation of phase I of the spectromicroscopy program MAXIMUM (multiple-appli... more We discuss the implementation of phase I of the spectromicroscopy program MAXIMUM (multiple-application x-ray imaging undulator microscope) at the Wisconsin Synchrotron Radiation Center. Successful feasibility tests included taking photoemission micrographs with lateral resolution of a few microns, line scans, knife-edge tests, photon flux measurements, and characterization of the focusing performance.
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Image and Vision Computing, 2004
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Image and Vision Computing, 1998
... A multi-stage approach to the dense estimation of disparity from stereo SEM images. ... varia... more ... A multi-stage approach to the dense estimation of disparity from stereo SEM images. ... variation between the left and right images have been addressed using a modification to rankorder filtering which we call 'soft' ranking. ... References. vision COMPUTING ELSEVIER Image and ...
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Fuel, 2011
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Catalysis Letters, 2008
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Development of Catalytic Strategies for Upgrading of Biofuels Steven Crossley, Surapas Sitthisa,L... more Development of Catalytic Strategies for Upgrading of Biofuels Steven Crossley, Surapas Sitthisa,Lance Lobban, Richard Mallinson, and Daniel Resasco ... 2. Santikunaporn, M., Herrera, JE, Jongpatiwut, S., Resasco, DE, Alvarez WE, and Sughrue, EL, J. Catal., 228(1), 100, (2004 ...
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Triglycerides from vegetable oils or animal fats are a potential source of fuels and chemicals. T... more Triglycerides from vegetable oils or animal fats are a potential source of fuels and chemicals. Transesterification of triglycerides with methanol is commonly used to convert triglycerides to so-called biodiesel, which consists of fatty acid methyl esters (FAMEs). This conversion ...
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Page 32. Catalytic strategies for improving specific fuel properties Phuong TM Do, Steven Crossley... more Page 32. Catalytic strategies for improving specific fuel properties Phuong TM Do, Steven Crossley, Malee Santikunaporn and Daniel E. Resasco* DOI: 10.1039/ b602366p 1. Introduction As governments are urged to become ...
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Applied Catalysis B: Environmental, 2011
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AIChE Journal, 2009
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In the last 10 years the TINA vision system has been under continual development and expansion wi... more In the last 10 years the TINA vision system has been under continual development and expansion with the stereo sub-system evolving considerably. In this paper we document this evolution outlining the stereo requirements of the 3D wireframe model matcher in TINA and explaining why PMF was de- signed as a solution. We describe how the algorithmic constraints within PMF (a classical feature-based solution to the stereo correspondence problem) were then re-formulated as the Stretch Correlator (SC), a feature driven, area-based solution. We explain how the computational benefits of the SC implemen- tation were exploited in the development of the Video Convolution Processor (VCP), a prototype VLSI device designed and fabricated to accelerate the fundamental SC processes. The SC algorithm was extended to integrate data from temporal sequences of stereo images in order to improve robustness and cope with dynamic environments. Finally, we discuss how and why multi-scale techniques were incor...
Bookmarks Related papers MentionsView impact
... A multi-stage approach to the dense estimation of disparity from stereo SEM images. ... varia... more ... A multi-stage approach to the dense estimation of disparity from stereo SEM images. ... variation between the left and right images have been addressed using a modification to rankorder filtering which we call 'soft' ranking. ... References. vision COMPUTING ELSEVIER Image and ...
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
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Bookmarks Related papers MentionsView impact
ChemSusChem, 2014
Fast pyrolysis of biomass to produce a bio-oil followed by catalytic upgrading is a widely studie... more Fast pyrolysis of biomass to produce a bio-oil followed by catalytic upgrading is a widely studied approach for the potential production of fuels from biomass. Because of the complexity of the bio-oil, most upgrading strategies focus on removing oxygen from the entire mixture to produce fuels. Here we report a novel method for the production of the specialty chemical, gluconic acid, from the pyrolysis of biomass. Through a combination of sequential condensation of pyrolysis vapors and water extraction, a solution rich in levoglucosan is obtained that accounts for over 30% of the carbon in the bio-oil produced from red oak. A simple filtration step yields a stream of high-purity levoglucosan. This stream of levoglucosan is then hydrolyzed and partially oxidized to yield gluconic acid with high purity and selectivity. This combination of cost-effective pyrolysis coupled with simple separation and upgrading could enable a variety of new product markets for chemicals from biomass.
Bookmarks Related papers MentionsView impact
Science, 2010
A recoverable catalyst that simultaneously stabilizes emulsions would be highly advantageous in s... more A recoverable catalyst that simultaneously stabilizes emulsions would be highly advantageous in streamlining processes such as biomass refining, in which the immiscibility and thermal instability of crude products greatly complicates purification procedures. Here, we report a family of solid catalysts that can stabilize water-oil emulsions and catalyze reactions at the liquid/liquid interface. By depositing palladium onto carbon nanotube-inorganic oxide hybrid nanoparticles, we demonstrate biphasic hydrodeoxygenation and condensation catalysis in three substrate classes of interest in biomass refining. Microscopic characterization of the emulsions supports localization of the hybrid particles at the interface.
Bookmarks Related papers MentionsView impact
Physica Scripta, 1990
We describe the development of the scanning photoemission spectromicroscope MAXIMUM at the Wisonc... more We describe the development of the scanning photoemission spectromicroscope MAXIMUM at the Wisoncsin Synchrotron Radiation Center, which uses radiation from a 30-period undulator. The article includes a discussion of the first tests after the initial commissioning.
Bookmarks Related papers MentionsView impact
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 1990
We discuss the implementation of phase I of the spectromicroscopy program MAXIMUM (multiple-appli... more We discuss the implementation of phase I of the spectromicroscopy program MAXIMUM (multiple-application x-ray imaging undulator microscope) at the Wisconsin Synchrotron Radiation Center. Successful feasibility tests included taking photoemission micrographs with lateral resolution of a few microns, line scans, knife-edge tests, photon flux measurements, and characterization of the focusing performance.
Bookmarks Related papers MentionsView impact
Image and Vision Computing, 2004
Bookmarks Related papers MentionsView impact
Image and Vision Computing, 1998
... A multi-stage approach to the dense estimation of disparity from stereo SEM images. ... varia... more ... A multi-stage approach to the dense estimation of disparity from stereo SEM images. ... variation between the left and right images have been addressed using a modification to rankorder filtering which we call 'soft' ranking. ... References. vision COMPUTING ELSEVIER Image and ...
Bookmarks Related papers MentionsView impact
Fuel, 2011
Bookmarks Related papers MentionsView impact
Catalysis Letters, 2008
Bookmarks Related papers MentionsView impact
Development of Catalytic Strategies for Upgrading of Biofuels Steven Crossley, Surapas Sitthisa,L... more Development of Catalytic Strategies for Upgrading of Biofuels Steven Crossley, Surapas Sitthisa,Lance Lobban, Richard Mallinson, and Daniel Resasco ... 2. Santikunaporn, M., Herrera, JE, Jongpatiwut, S., Resasco, DE, Alvarez WE, and Sughrue, EL, J. Catal., 228(1), 100, (2004 ...
Bookmarks Related papers MentionsView impact
Triglycerides from vegetable oils or animal fats are a potential source of fuels and chemicals. T... more Triglycerides from vegetable oils or animal fats are a potential source of fuels and chemicals. Transesterification of triglycerides with methanol is commonly used to convert triglycerides to so-called biodiesel, which consists of fatty acid methyl esters (FAMEs). This conversion ...
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
Page 32. Catalytic strategies for improving specific fuel properties Phuong TM Do, Steven Crossley... more Page 32. Catalytic strategies for improving specific fuel properties Phuong TM Do, Steven Crossley, Malee Santikunaporn and Daniel E. Resasco* DOI: 10.1039/ b602366p 1. Introduction As governments are urged to become ...
Bookmarks Related papers MentionsView impact
Applied Catalysis B: Environmental, 2011
Bookmarks Related papers MentionsView impact
AIChE Journal, 2009
Bookmarks Related papers MentionsView impact